Individual differentiation in behaviour of honey bee workers (Apis meltifera L.) J. van der Blom Research Articles Pages: 345 - 361
Weight changes in adult hornets,Vespa affinis (Hymenoptera: Vespidae) S. J. Martin Research Articles Pages: 363 - 368
Memory and chemical communication in the orientation of two mass-recruiting ant species S. AronR. BeckersJ. M. Pasteels Research Articles Pages: 369 - 380
Landmark orientation during the approach to the nest in the stingless beeTrigona (Tetragonisca) angustula (Apidae, Meliponinae) J. ZeilD. Wittmann Research Articles Pages: 381 - 389
Defenders in the North American aphidPemphigus obesinymphae N. A. Moran Research Articles Pages: 391 - 402
A latitudinal gradient in intensity of applying ant-repellent substance to the nest petiole in paper wasps (Hymenoptera: Vespidae) Jun ichi Kojima Research Articles Pages: 403 - 421
Doronomyrmex pocahontas: not a workerless parasite but still an enigmatic taxon (Hymenoptera, Formicidae) A. BuschingerJ. Heinze Research Articles Pages: 423 - 432
Intraspecific slavery inPolyergus rufescens Latr. (Hymenoptera, Formicidae): field and laboratory observations F. Le MoliD. A. GrassoA. Mori Research Articles Pages: 433 - 437
Long-term impact of orphaning on field colonies ofCoptotermes lacteus (Froggatt) (Isoptera: Rhinotermitidae) M. LenzS. Runko Research Articles Pages: 439 - 456